The mapping of virtual memory to physical memory occurs through page tables, which are implemented in the underlying hardware (see Figure 1).
虚拟内存到物理内存的映射通过页表完成，这是在底层软件中实现的(见图1)。
Each virtual portal has one specific URL mapping referencing its content root.
每个虚拟门户都有引用其内容根的特定url映射。
For each running process, the mapping between virtual and physical address is maintained in a data structure called the page table.
对于每个正在运行的进程，虚拟地址与物理地址之间的映射是在一个称作页表的数据结构中维护的。
If no URL mapping is specified, the user is directed to a "default" virtual portal.
如果没有指定url映射，则会将用户定向到“缺省”虚拟门户。
You access a virtual portal using a specific URL mapping, which is associated with that virtual portal.
您可以使用特定的URL映射访问虚拟门户，这种映射与虚拟门户相关联。
Each virtual portal has a specific URL mapping which references the portal's content root.
每一个虚拟门户都指定了引用门户上下文根的URL映射。
That mapping is defined and created during the initialization of the virtual portal.
在虚拟门户初始化期间定义并创建了该映射。
Then, the VIO client LPARs are told the virtual Ethernet adapters and VLAN Numbers they should access through an SEA mapping.
然后，通过sea映射告诉VIO客户机LPAR应该访问的虚拟以太网适配器和VLAN编号。
To create a virtual portal, the master administrator specifies a set of properties (such as title, realm, friendly URL Mapping, default theme) and designates the group of sub-administrators.
为了创建虚拟门户，主管理员指定了一套属性(例如题目、范围、友好的URL映射，缺省主题)以及指定次级管理员实例。
The URL mapping which points to the context root of a virtual portal has a unique name, as well.
同样的，指向虚拟门户上下文根的URL映射拥有唯一名。
TLB is the cache holding the mapping information from the virtual address to the physical page in memory.
TLB缓存包含从虚拟地址到内存中物理页面的映射信息。
Again, the friendly URL mapping is used to specify the virtual portal.
再一次，友好URL映射用于指定虚拟门户。
In the case that an invalid URL mapping is used, the user is also directed to the default virtual portal.
在使用无效url映射的情况下，用户也被定向到缺省虚拟门户。
For instance, you might want more control over the mapping of virtual machines to physical machines, or you might want to be deterministic about the assignment of IP addresses to virtual machines.
例如，可能希望进一步控制虚拟机到物理机器的映射，或者希望更确定地把IP地址分配给虚拟机。
In the case that an invalid URL mapping had been used, the user is directed to that "default" virtual portal as well.
对于使用无效url映射的情况，也会将用户定向到该“缺省”虚拟门户。
To understand the reverse mapping technique, let's quickly go through some fundamentals of the Linux virtual memory system.
为了理解反向映射技术，让我们来首先简单了解Linux虚拟内存系统的一些基本原理。
Next, we run the rmvdev command to remove any virtual target device (VTD) mapping associated with the hdisk (e.g. vtscsi2).
接下来，我们运行rmvdev命令来删除与这个hdisk(比如vtscsi2)相关联的所有虚拟目标设备(VTD)映射。
Based on the URL mapping that is used, WebSphere portal sets an internal virtual portal context.
基于使用的URL映射，WebSpherePortal设置了一个内部虚拟门户上下文。
Such as when the VM executes code in kernel mode; then VMWare has to carefully translate the memory mapping and permissions in order to simulate the VM's virtual CPU correctly.
比如，当VM以内核模式执行代码时；为了正确地仿真VM的虚拟cpu,VMWare必须谨慎地转换内存映射和权限。
If no URL mapping is specified, the user is directed to a default virtual portal, which is the one created during installation of WebSphere portal.
如果没有指定url映射，用户被定向到缺省虚拟门户，缺省虚拟门户是在WebSphere Portal初始化期间创建的。
Windows does this by mapping multiple virtual pages from different address Spaces to the same physical location.
Windows通过将来自不同地址空间的多个虚拟页映射到同一个物理地址来实现这种机制。
That mapping is defined and created during the initialization of a virtual portal. Such a friendly URL for a virtual portal can look like this.
该映射是在虚拟门户初始化过程中定义和创建的。
The virtual memory subsystem has been enhanced with a reverse-mapping algorithm, which provides improvements in memory constrained systems.
通过使用反向映射算法，虚拟内存子系统已经得到了提高，这为内存受限的系统带来了改进。
Virtual memory subsystem enhancements, including a reverse-mapping algorithm that provides improvements in memory-constrained systems.
虚拟内存子系统改进，包括在内存压力比较大的系统中提供的反向映射算法。
It illustrates the concept and identification of virtual channel, the mapping relation between virtual channel and traffic class and virtual channel arbitration.
详细阐述了虚拟通道的概念、识别，虚拟通道和流量归类的映射对应关系以及虚拟通道的仲裁。
The operating system updates the mapping of virtual to physical addresses, so that the requested virtual address can be mapped to a physical address.
操作系统随即更新地址映射，以便被请求的虚拟地址能映射到物理地址。
This paper focuses on the technology of motion mapping between human hand and virtual hand.
本文对从人手到虚拟手的运动映射技术进行了详细的探讨。
This thesis also analysis the coordinate mapping from virtual sculpting to realmachining based on the Human Computer Interactive input way of electromagnetictracing.
本论文针对特定的电磁跟踪式输入方式，完成了从虚拟雕刻设计到实际加工的映射。
Gesture recognition of human hand based on data glove and motion mapping from human hand to virtual hand are studied.
研究了基于数据手套的人手手势的获取和人手到虚拟手的动作映射方法。
Gesture recognition of human hand based on data glove and motion mapping from human hand to virtual hand are studied.
研究了基于数据手套的人手手势的获取和人手到虚拟手的动作映射方法。
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